Method and apparatus for assembling cabinets and the like



A. F. KRUEGER.

METHOD AND APPARATUS FOR ASSEMBLING CABINETS AND THE LIKE.

APPLICATION FILED AUG.l9, 1920.

7 A I Patented Jan. 31,1922.

' 5 SHEETS-SHEET l- I llillv A. F. KRUEGER.

METHOD AND APPARATUS FOR ASSEMBLING CABINETS AND THE LIKE.

APPLICATI'ON FILED AUG-l9, 1920.

1,404,978, V Patented Jan. 31,1922.

A. F. KRUEGER. 7 METHOD AND APPARATUS FOR ASSEMBLING CABINETS AND THE LIKE.

- APPLICATION FILED AUG.I9, I920- 7 1,404, 7 I Patented Jan.31,1922.

IIIIIIIIIIIIIIIIII I II II A.'F. KRUEGERJ. I METHOD AND APPARATUS FOR ASSEMBLING CABINETS AND THE LIKE.

APPLICATION FILED AUGJQ, i920.

' @gdwiavu A. F. KRUEGER.

Patented Jan. 31, 1922.

5 SHEETS-SHEET 5- I I 10 I43 '9' v 9;; ST.

DOL PH KRUEGER, or MILWAUKEE,'WQIS'QCSNSINH METHOD AND APPARA'rus ron ASSEMBLING casinsms Ann 'lf I-IE L' 'Ef p T 0 all an 710m it may comma: I

Be it knownthat I, AnoLrH F. KRUEGER, a citizen of the United States, and resident of lillilwaukee in the county of Milwaukee and State of WVisconsimjhave inventedcertain new and useful Improvements in Meth ods and Apparatus for Assembling Cabinets and the like; and I do hereby declare that the following is a full clear, and exact description thereof.

My invention relates to new and usefu improvements in the method and apparatus for assembling box or cabinet structuressuch as the type shown in my cospending application for patent on phonograph record storage cabinets, filed March 13, 1920, Serial No. 365562, and comprisinga box body of the covered type having a series of partitions secured therein to form seats for a seriesof slidable record-carrying sheets.

- It is primarily anobject of my invention to provide a method of assembling and securing the various partition and Wall members of a cabinet structure of this character in si1clin1anne1 as to effect a firinholding of the parts for theirpaste or other secureinent whereby to provide an article-of maximum iieatiiess and compactness, and it is more particularly my objectin thisjconnection to provide a method 0f assembling the cabinet structure wherein all of the partition members are simultaneously secured in the wall members aiid held in their proper relativepositions pending the fixation of the securiiig medium. A further primary object resides inthe provision of, an apparatus for conveniently and expeditiously carrying out my improved method of forming articles of the present character.

In forming box or cabinet structuresot the covered type, it has been heretofore customary to assemble the body members of the box or cabinet structure and tothen apply the cover sheets thereto, in this connection it is a further object of my invention to provide a method of forming suchstructiires which iitilizesvalance port-ions of the cover flanges as the means tor securing the body members of the box or cabinet together in the initial assembly of the article.

A further and important object of my'invention resides in the provision of an assembliiig apparatus for carrying out my improved method, which is provided with a Specification of Letters Patent.

Application filedrAugust 19, 1920. Serial lNo.-404=, 669

. awe

plurality of finisms-for simultaneously.

carrying out successive steps o f the assem bling' operation whereby to facilitate ;the"

d as 1; r

speed of operation of this character, and in I this connection it is moreparticularly my ob ectto provide an apparatus including' a series of assembling frames adapteclto be selectively associated w th the various clamp J" ing and charging portions of the apparatus. I

A stillfui'ther object resides in.t he prov.

vision; of assembly fraine associated with charging and clamping mechanismsand-f'iiivertible to facilitate the. application ofitop and bottom valance flanges to the respective casing portions. y

A still vfurther object resides in the-provision of an assembly frame provided with means for exerting clamping pressure the plane of the lframe against the edge portions of an articlesecuredtherein, and alsopro' vided with means for exerting clamping pressure transversely oii the plane ofv the frame. s

fFigure 1 is a plan view ofanassembling i h a v d eth b ect and a r vantagesin view, my invention resitles',moi e i 8O apparatus constituting one embodiment of my invention andproviding a iiieans ftfor carrying. out t ny: .i mproved assernbliiig method; i

F gure 2 is a longitudinal. sectional view uah e apparatu Figure 3 is a transverse sectional f vi e w: i

.through one of the assembly frames in oper ative relation 'to the charging mechanism o-fthe apparatus, theplanero' f this section being indicated by the line 8-3 of Figure 1; andshowinggt he various portions. ot' 'a record cabinet mounted in the apparatusj in iiiitialposition;

Figure 4c is a view similar to Figure 3, but showing the partition sheets and. spacer plates forced through a the forming. frame and asseinbledwithin the wall members held by tlieassembly-frame; I, 'Figure 5 is a view taken transversely through one of the assemblyflframes operative relation to its. corresponding clamping mechanism prior to the application of held in the assembly frame;

Figure 6 is a similar View showing the application of clamping pressure;

Figure 7 is a plan view of one of the partition sheets of a cabinet constructed in accordance with my improved method;

Figure 8 is an elevational view of the rear wall member showing the cover sheet therefor secured thereto with its edges extended beyond the edges of the wall member to form attaching valance flanges;

Figure 9 is a similar view of one of the side wall members, and

' Figure 10 is a transverse sectional view through the side wall member on a plane indicated by line 10-10 of Figure 9 and showing the valance flange structure for engagement with the forward edges of the top and bottom sheets of the cabinet.

Entering now into a brief description of my improved method and apparatus, my

method resides essentially in building up a pile of alternate core plates and cabinet partition sheets provided with valance flanges, this pile being preferably formed in a sup porting frame removable from the body of the apparatus, and in then applying wall members against the sides of the pile of core plates and partition sheets, this action being carried out in my present apparatusby setting thewallmembersin an assembly frame located under a forming frame and in then forcing the pile of core-plates and partition sheets through the forming frame and into the assembly frame, thus bending the valance flanges of the partition sheets, said assembly frame being provided with suitable clamping means. In the present apparatus, I provide a central charging mechanism including a removable support and forming frame, a hingedly mounted guide frame and a swinging plunger movable through said frames. At each side of the charging mechanism I provide a clamping mechanism. A pair of assembly frames are provided which are pivoted between each clamping mechanism and the charging mechanism, which is thus common to both assenibly frames, and the assembly frames may be swung alternately for operation with the charging mechanisms and their respective clamping mechanisms, each of'the frames being inverted in this swing ing movement to facilitate'application of the top and bottom valance flanges of the casing structure, as will be later described in detail. It will be also appreciated that by providing a pair of assembly frames, one of said frames may be held in the clamping mechanism for the proper duration of time while the charg ing operation is carried out with respect to the other frame, thus providing for a substantially continuous operation of the appa ratus, which, together with the economy of time effected by the novel method steps provides for an exceedingly rapid output ofaccurately and compactly formed cabinet articles. I

My improved method and apparatus is utilized in the present illustrations for forming a phonograph record storage cabinet which, in detailFigures 6 to 10 and in the assembled relation of its parts in Figure 5, comprises a series of partition sheets a spaced apart a slight distance and each having three side edge portions turned to provide attaching flanges Z) engageable with rear end and side wall members 0 and d respectively. Top and bottom sheets 6 and f, shown in black lines in Figure 5, are provided for the cabinet structure, and a cover and attaching sheet g is secured to the rear end wall 0, with its edges projected past all of the edges of the rear end wall to form valance flanges, while a cover sheet h is secured to each side wall at with its top and bottom edges projected beyond the corresponding edges of the side wall to form valance flanges, the forward edge of the sheeting it being bent about the forward edge of the side wall and slit at i at its bend. The topand bottom valance flanges of the cover sheets are bent about and pasted to the top and bottom 6 and 7 of the cabinet, while the end valance flanges of the rear end wall are bent about and pasted to the side walls, the inturned forward edge portion of the valance flange of the cover sheet 172, being pasted to the inner sides of the top and bottom 6 and f to form a neat and firm connection.

Referring now in specific detail to the structure shown in the drawings, there is provided a main support frame comprisingupper longitudinal sills 10 supported by legs 11 and connected by end cross-sills 12, by an intermediate pair of cross-sills 13 and by a pair of clamp support cross-sills 14: at each side of the pair of intermediate sills 13. This 7 main support frame also includes lower longitudinal sills 15 and cross-sills 16. A shelving 17 is mounted at the rear portion of the support frame to carry work material or other articles for the convenient use of the operator. 1

A pair of assembly frames is provided in the present apparatus and each of these frames is formed of side bars 18 connected by transverse bars 19, adjacent ends of the side bars being continued past the corresponding end bar 19 and secured on pivot pins 20 carried by the side sill structure of the assembly frame and by diagonal brace members 21 whereby each of the frames is 7 members being normally? urged outwardly toward the side of the frame' by 'retractile springs 24, while suitable means is provided for urging theclamping members inwardly to exert clamping pressure in the general plane ofthe 'assembly fraine, such cam means comprising in the present instancea cam head 25' secured'tothe clamping member and having inclined surfaces co-operating with inclined surfaces of a clamping head- Qtijjourhaled on a bolt 27 in the adjacent side ofthe'assembly frame, said clamping head 26' carrying an upstanding ha11dle-28ztoeffect its operative movement. The other two mutually adjaeent sides of the assembly frame. have longitudinal strips 29 secured on their inner faces and these strips-29' in turn""are provided with facings-of leather '30 or similar ma terial, said facin'gs having-their edges ;'eX'- tended beyond the edgesof the strips 29 and secured tothe faces of top and bot-;

tom transverse clamping strips 31 whereby hinge connections are aifordedjbetween the top and bottom clamping strips 31 and the respective strip 29. The adjacent ends 10f each pair of transverseclampin' g strips 31 are connected by a contractile coiled spring 32 in such mannerthat the points of 'con-f' nection of the springs are movable ;to either side of the hingeconnectio'ns afforded for the strips whereby the stripsvmay'be resiliently heldeither in seating engagement against the edges of their corresponding intermediate strip 29, or may be urged in inwardly swung "pfosition' toward an article held in the framegas shown at the right hand side of-Figu'res =5-'an'd 6. w The clamping member 28 also fcarries a pair. of transverse clamping strips designated at 31 whereby an articleasser'nbled in the clamp ing frame may "in the presentinstance' have transverse pressure exertedthereon at three sides thereof. I i m' Taking up now the {charging mechanism of the apparatus, it is noted that when one over the intermediate crOss-sill's 13 and a guide and 'seating ifraine 33"is pivoted; at

I I the rear of the main "support 'framei'and adapted to swing downwa rdly over the as sembly frame in this positiona saidguide frame being recessed "alongits "upper side portions to receive the "lower I portion of a supportand" forming-frame 34f; Shield plates 35 are secured :toithe'inner'i'faces of three sides'of the guide fra-me' and depend -therebelow to extend into the-forming frame, the lower: edges-of theseplates being resiliently inclined inwardly. As shown in Figure the wall members ofthe cabinet" structure are set within the 'assemblyframe when the same isan chargingposition and the Y lowered'ge 'POIUOHS of the shield plates most ofapile of alternate-partition sheets w and core sheets 00, the dimensions iofithe'core sheets being such as to snugly pass the ledges 3'7 of the for'iningframe and 'to bend the flangeedgeportions of the partition sheets a, during their movement-therepast." For fore ing the' pile ofv-core and partition sheets through theforming frame and into the assembly frame,:a plunger h'ead- 38is provided which is'carried vby a bar'39 slidably carried by apair of arms 40 projectingfrom atu'rning post il which is supported by; a standard l-Qfwhereby the plunger may swing toward and away from operative position over the-forming frame. "This'plunger is engaged by an operating lever t3 pivoted to the turn post 41 and resiliently urged Tupwardlytoinitial position by a contractile I will: now describe in detail the complete operation of the charging mechanism to provide the assembly of' the parts -of the cabinet: One ofth'e assembly frames is. first swung to its-central :or charging position; the wall members 0 and (Z set the cabinet are then placed in the frame against the respective sides thereofyglue is then applied to the inner faces of. the-walls, said .glue'fbeing preferably carried in a pot a (not preferably mounted on the main supp'ort frame between'the pivots of the guide frame the guide and seating framei33 is next swung downwardly onto the assembly-frame to shield'the upper portionsfof the walls and 'valanee'fianges, and the support and formlng frame is; placed on the: frame 33;

Itis incidentally.notedfithat this support and forming frame isqseparate from the body 'of theap'paratus, andfaplurality of such frames inaybe used whereby anassist ant may be loading alternate core-sheets and partition sheets in one'of the forming frames while the operator ofthe apparatus is effecting. a charging operation with another ofthe frames; The plunger 38 is then portions of the partition sheets being turned in thispperationfor engagement with the inner faces 'of'the walls to secure them "in walls, it being noted that each flange portion of each partition sheet is confined between the respective wall and an edge portion of the corresponding rigid and relatively thick core sheet 00. The handles 28 of the clamping heads are then rocked to move the clamp members 22 and 23 inwardly, thus applying pressure against said walls in a general longitudinal direction of the plane of the assembling frame. The forming frame 34 is then removed, the guide frame 33 is lifted and the bottom sheet 7 of the cabinet is placed on the pile of partition and core sheets, seating on the uppermost coresheet. The upper transverse pressure strips 31 and 31 are then swung inwardly, being retained in inwardly swung position by the movement of the points of connection of the coiled springs 32 past their hinge connections. It is noted that prior to application of the bottom sheet f, the slit forward edge portions of the valance flange of the cover sheet h are bent inwardly as shown in dotted lines in Figure 10 for. engagement with the inner face of the bottom sheet.

The assembly frame, with the cabinet parts assembled therein, is next swung upwardly and over to its corresponding transverse clamping mechanism, being thus inverted during said movement. The top sheet 6 is then applied to the cabinet structure and the other transverse pressure strips 31 and 31 are bent inwardly and held by this spring connection, the entire cabinet structure being now completely assembled with the exception that the end valance flanges of the rear cover sheet 9 are tobe bent inwardly and pasted, which is accomplished upon removing the article from the machine, it being understood that the valance flanges of the cover sheets are coated with paste and may be wetted at any suitable time;

It is noted that in the operation of forcing the pile. of core and partition sheets through the forming frame, a partition sheet is necessarily disposed at the bottom of the pile, and to hold this partition sheet snugly in place and facilitate the even movement of the pile through the forming frame I provide a yieldable support frame 47 carried by the upper ends of slidable posts 418, this frame sliding between the intermediate cross-sills 13 and being resiliently urged upwardly by contractile coiledsprings 49 secured to said sills 13 and to the lower ends of the posts 48. This frame is auto matically held. in lowered position to provide for proper clearances of swinging frame movement by a clutch block 50 pivoted to the main support frame and engageable with one of'the posts 18, being resiliently urged tosuch engagement by a coiled spring 51. In its upward limit of movement the top of the yieldable frame 47 is flush with the shaping ledge 37 of the forming frame 34, while in its lower limit of movement the top of the frame is substantially flush with the assembly frame seats for the wall members and hence forms a stop for the downward movement of the plunger so asto accurately position the pile of core and partition sheets in the assembly frame, this downward limit of movement being adjustably determined by stop bars 52 carried by the posts 48 and engageable with a seat frame-53 surrounding the legs or posts 7 i 48, said seat frame being adjustably held by set-screws 54 carried by portions of the main support frame.

The clamping mechanism for each of the assembly frames comprises an upper swinging clamp frame 55 hinged at the rear portion of the main support frame and carrying a series of bars 56 in which are mounted spring-urged bolts 57 having their heads engageable with clamping strips 31 and 31 the present instance a pair of lever-bars 61 pivoted to outstandin arms 62 of the main frame and carrying hook-links 63 engageable with a transverse bar 64: of the frame 55 whereby upon downward movement of the levers 31, the desired pressure will be applied against the resilient action of the bolts 57 and 60, the parts locking in this position by reason of the movement of the pivotal connections of the links past the pivots of the levers. Thus, one cabinet structure may be assembled and clamped and the operator may then proceed with the assembYy and clamping of a second cabinet structure, giving ample time for the first cabinet structure to set, whereupon the first cabinet structure may be removed from the device by disen gaging the upper clamping frame 55 and moving the clamp members 22 and 23 to retracted position. i

While I have shown the charging mechanism of my machine as associated with a pair of assembling frames pivoted for move ment toward and away therefrom, it will be appreciated that my machine embodies more broadly the idea of successive association of these charging mechanisms with any series of assembling frames so that a continuous operation may be carried out, and by reason of this continuous operation, together with other novel features of my method and apparatus, I provide an exceedingly ra id and conveniently operable means for orming 1,404,978 l 7 I i cabinet structures. of various? nature's. .It will be further noted that, by first securing the cover sheet sections of the cabinetor box to the wall members thereof, then placing,

of apparatus for. carrying outthis method,

it will be appreciated that various changes and modifications of method steps or of structural relations may be employed to meet differing conditions of use and manufacture without departing in any manner from the spirit of my invention as embodied in the appended claims. I WVhat is claimed is: y V 1. An assembling apparatus including a charging mechanismv having a plunger, a

clamping mechanism, and an assembly frame movable for selective association with the charging mechanism and the clamping mechanism. o V v 2. An assembling apparatus including a charging mechanism having a plunger, a clamping mechanism disposed at each side of the charging mechanism, and a, pair of movable assembly frames eachadapted for association with a charging mechanism and with a respective clamping mechanism.

8. An assemblingapparatus including a charging mechanism having a plunger, a clamping mechanism disposed at; each side of the charging mechanism, and a pair of assembly frames each provided with a pivotal mounting between the charging mechanism and one of the clamping mechanisms, each of said assembly frames being adapted for association with the charging mechanism and a respective clamping mechanism.

41:. An assembling apparatus including a charging-mechanism' havinga plunger, a clamping mechanisnnan assembly frame movable for selective association with said charging mechanism and said clamping mechanism and adapted to receive clamping pressure from said clamping mechanism transversely of its general plane, and means carried by the. assembly, frame for exerting clamping pressure longitudinally of itsgeneral plane. V 1

5. An assembling apparatus including an assembly frame, a movable forming frame adapted for disposition over the assembly frame, and ,a swinging plunger-member movable through the forming frame.

' An assembli g pp u includi g a main support structure, a frame'hi nged. to

said main support structure, meanscarried by said frame for holding work material, a'

clamping frame hinged to saidmain, sup;

port structure, an assembly frame movable to seat on themainsupportxstructure adj a- 7 cent either. of the-first named frames where-.- by said f frames may beyselectively swung downwardly over the assembly frame, means .for imparting. clamping pressure to the clamping frame, and means for forcing Work material through the otherhinged frame.

7. Anassemblingapparatus,- including a main support structure, a hingedly mounted guide frame, an assembly frame adapted to seat on the main sup-port structure wheremember carried by the main support structure andadaptedi to force Work material through the guide andsupport framesinto the assembling'fram'e; J

8. Anassembling apparatus including a main support structure, a' movable.- assem:

bly frame adapted to seat on sa d mainsup port structure, a movable forming frame adapted for disposition overthe. assembly frame, a yleldab-le work material support carried by said main support structureand adapted to yielda'bly extend throughsaid frames to support work material, and a plunger movable through" said forming frame to force work material therethrough into the-assembling frame. i l

9. An assembling apparatus including a by said guideframemay be swungfldowmwardly over the assembly frame, ;a.work

material support frame adapted to movab-ly' .seat over the guideframe, and 1a, plunger main support structure, a movableassembly' frame adapted to seat onsaid main support structure, a-movable forming. frame adapted for disposition over the assembly frame, a yieldable work material support. carried by said main support structure and adapted to yieldabl-y extend through said frames to support Work material, aplungermovable through said forming frame to force work material therethrough into the assembling frame, and releasablemeans for holding said support member against movement.

10. A11 assembling apparatus including a main support structure, a movable assembly frame adapted to seat on, said mam support structure, a. movable forming frameadapted for disposition over the assembly frame, a yieldable work material support carried by said main support structure and adaptedto yieldably extend through said framesto support work material, plunger movable through said forming frame to force work material .therethrough intothe assembling frame, and, means: forminganadjustable stop limiting downward movement of said yieldable support member.

11. 1 1 an apparatus of the classdescribed,

an assembling including aframe,

means for mounting a filler body and wall 'members in the frame, pressure strips hingedly connected with side portions of the frame, and means forurging said pressure strips inwardly.

12. In an apparatus of the class described, an assembling mechanism including a frame, means for mounting a filler body and wall members in the frame, pressure strips hingvframeypressure strips "hingedly connected with side portions of the frame, and springs each connected with an opposed pair of pres sure strips and movable past the plane of the hinge connection of the pressure strips upou inward movement of the strips.

14L. Inan assembling apparatus, a frame, clamp side members mounted in said frame, means for, moving said members inwardly to exert clamping pressure in a direction longitudinal'of the plane of the frame, pressure strip mounted at side portions of the frame, and means for urging said pressure strips inwardly to exert pressure transversely of the frame.

15. In an assembling apparatus, opposed pressureapplying members, means forurging said members together, an assembly frame insertable between said pressure-zip plying members, and pressure strips hingedly connected with side portions of the frame and adapted to swing inwardly for engagement with the edge portions of an article held in the frame, said pressure strips being engagoable by said pressure-applying members when the assembly frame is inserted between said members.

'16; an ':-:ssemhling apparatus comprising means for supporting a pile of alternate partition and spacer sheets above said frame, means for forcing said pile of sheets tl'irough the forming f ame to form flanges on the edges of the partilicm sheets, and means for applying walls to said flanges.

1'7. An assembling apparatus including an assembly frame adapted to receive wal portion'sin its sides, a forming frame disposed above the assembly frame, means for supporting a superposed pile of alternate spacer and partition sheets above the forming frame, and means for forcing said 'pile through the forming frame into the assembling frame to'p'rovide flanges on the edges of the partition sheets engageable with said walls.

18. An assembling apparatus including an assembly frame adapted to receive wall against the partitions.

19. Ian assembly apparatus including a series of" assembly frames selectively movable to receiving position, a forming frame adapted for disposition over each'assembly frame in receiving position, means for supporting a superposed pile of alternate spacer and partition sheets above the forming frame, and means for forcing said pile through the forming frame into the assembhng frame to provide flanges on the edges of the partition sheets engageable with said walls.

20. An assembling apparatus including a main support frame, a plurality of as sembling frames hinged to the main support frames and each adapted to swing to a common receiving position, a forming frame adapted for disposition over each assembling frame in its receiving position, means'for supporting a superposed pile of alternate spacer and partition sheets above the forming frame, and means for forcing said pile through the forming frame into the assembling frame to provide flanges on the edges of the partition sheets engageable with said walls.

21. An assembling appa 'atus including a main support frame, a'plurality of wall re ceiving assembly frames selectively movable to a common receiving position, a frame hinged to the main support frame and movable to a position over said common receiving position forthe assembly frames, a detachable frame for supporting superposed. series of alternate spacer and partition sheets above the hinged frame, and means for forcing said sheets from the detachable frame through the hinged frame into the scmbling frame to provide flanges on the edges of the partition sheets engageable with said walls. I

22. An assembling machine including an. invertible assembly frame, a forming frame associated with the assembly frame, means for mounting an alternate series of partition. and spacer sheets at the mouth of the forming frame, means for supporting walls in the assembly frame, and means for forcing said sheets through the forming frame into the assembly frame.

'23. An assembling machine including an invertible assembly frame, a forming frame associated with the assembly frame, means for mounting an alternate series of partition and spacer sheetsat the mouth of the forming frame, means for supporting walls in the assembly frame, means for forcing said sheets through the forming frame into the assembly frame, and means associated with each side of the assembly frame for clamping balance flanges of material against sheets held in the frame.

24. The method of forming a cabinet of the class described which consists in building an alternate pile of core-plates and partition sheet-s having attaching flanges, in then ap plying wall members for paste engagement under pressure against the flanges of the partition sheets, and finally removing the core sheets.

25. The method of forming a cabinet of the class described which consists in buildportions of the sheet, in then applying ing a pile of alternate core plates and par-- tition sheets having marginal" flange poitions, in forcing'said pile through a forming frame to bend the flange portions of the sheets, and in then applying wall membersclamping pressure in the clampingframe to press said wall portions agamst the flange portions, and in subsequently relieving'said clamping pressure and removing the coreplates. 7

27. The method of forming a cabinet of the class described which consists in building an alternate pile of core-plates and partition sheets having attaching flanges, in providing wall members having cover sheets attached thereto wlth the edges of said cover sheets extended past the edges of the-wall members, in then pressing said wall members against the sides of the pile for paste yengagement under pressure with the flanges,

in applying" top and bottom sheets tothe pile, in then bending said extended edge portions of the cover sheets. into paste engagement withthe top andbottjom sheets, and 1n-then relieving said pressure and re- I moving the core-plates. v

'28. The method of forming a cabinet of the class described which consists in build- 'ing an alternate pile of core-plates and partition' sheets, inproviding wall .members having cover sheets secured thereto with the edges of the cover sheets projected past the edges of the wallmembers-to provide valance flanges, in then-applying the wall members against'the sides of the pile of core.

plates and partitionplates and. bending the valance flange portions of the cover sheets inwardly aboutsaid pile, and inpfinally r e-1 moving the core sheets. 7 g c 29, The method of forminga cabinetof the classdescribed which consists in build ing an alternate pile of core plates and par:

tition sheets, in providing wall members and top and bottom sheets for said pile, in applying cover sheets to certain of said mem I bers with edges of said cover sheets. projecting beyond the membersto form valance flanges, in then'applying the members to the faces'of said pile, and in then bendingthe valance flanges about the other members to hold the parts assembled.

30. The method'of forming a cabinet of v the class described which consists in prov;id-.

ing-a filler body, in providing top, bottom and wall members, in securing cover sheets to certain of said members with edge portions of the cover sheets projecting beyond the members to form valance flanges, 1n ap-' plying said members to the faces of the filler, body, and-in then bending the valance por-,

tions of the cover sheets about the. other members in paste engagement'therewith to hold the structure assembled. i j- 5 In testimonythatI claimthe foregoing I have hereunto "set my hand at Milwaukee, in the county of Milwaukee and State of Wisconsin.

- ADOLPH F. KRUEG ER, I 

